$ratio: 375 / 10;

@function px2rem($px) {
    @return $px / $ratio + rem;
}

@mixin center {
    display: flex;
    justify-content: center;
    align-items: center;
}

@mixin left {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

@mixin right {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}